Tuesday,  July 31, 2012 • Vol. 13--No. 017 • 34 of 56 •  Other Editions

Today in Weather History

1966: A deadly, estimated F3 tornado moved southeast, passing south of Ashley, North Dakota, destroying buildings on five farms with near F4 damage to one farm house. Another tornado with F2 strength occurred north of Long Lake where two adults were killed and three children were injured as a car was thrown 500 feet from Highway 101. A second estimated F2 tornado moved ENE just south of Aberdeen. A trailer was demolished, killing a man and injuring his wife. Seven airplanes were also had damage. Property damage was estimated at a quarter million dollars. An estimated 90 mph winds gust was also reported northeast of Aberdeen.

2008: In the early morning hours of the 31st, a line of storms originating in North Dakota began to expand and surge southeast into northeast South Dakota. As the storms moved southeast, they began to tap into warmer, more humid air and rapidly

evolve into a line of severe thunderstorms. Widespread damage occurred in a wide swath extending from Long Lake in McPherson County all the way into eastern Grant County and southern Big Stone County in Minnesota. The most extensive damage was generally found along and near US Highway 12 from Aberdeen to Milbank. Several observing stations in the path of this system measured wind speeds ranging from 70 mph to over 115 mph. Estimated wind speeds from damage surveys indicated even stronger winds with peak speeds of 120 mph. Over fifty communities in northeast South Dakota and the surrounding rural areas received minor to major tree and structural damage as straight line winds from 70 to 120 mph raced across the area. Webster and Waubay received the most extensive damage from the storms. Thousands of trees were snapped or uprooted, hundreds of grain bins were damaged or destroyed, hundreds of homes,

(Continued on page 35)

© 2012 Groton Daily Independent • To send correspondence, click here.